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本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解，
％ 以说明信号和噪声在各个尺度上的表现。-this program as a "Blocks" signal, then add white Gaussian noise, reuse db3 wavelet decomposition,% to illustrate signal and noise in various scales performance.
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对“Blocks”信号加上高斯白噪声，再用 db3 小波进行分解,以说明三种取阈值方法和三种噪声标志对去噪性能的影响。-right "Blocks" signal with white Gaussian noise, and then db3 wavelet decomposition, to illustrate three thresholding methods and three noise signs of de-noising performance.
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用双谱和小波变换去除信号中加性高斯噪声的相关程序
1.实现单个变量的双谱分析程序
2.用傅立叶反变换求自相关函数的程序
3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序
4.读取.wav语音信号后用小波去加信白噪声的程序
5.用各种小波和阀值对同一信号去加性噪声效果比较的程序
-Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. T
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图像的小波去噪,给灰度图像加上一定量的高斯噪声,再采用小波变换的方法去噪.-Wavelet Denoising image to gray image coupled with a certain amount of Gaussian noise, and then using the method of wavelet transform de-noising.
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图像的小波去噪,给灰度图像加上一定量的高斯噪声,再采用小波变换的方法去噪,计算去噪前后图像的PSNR。-Wavelet Denoising images to grayscale images coupled with a certain amount of Gaussian noise, and then using the method of wavelet transform denoising calculated before and after denoising images PS
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本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解，
以说明三种取阈值方法和三种噪声标志对去噪性能的影响。-This procedure Mr. Cheng a " Blocks" signal, and then adding white Gaussian noise, and then ' db3' wavelet decomposition, to illustrate the three kinds of chec
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本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解，-This procedure Mr. Cheng a " Blocks" signal, and then adding white Gaussian noise, and then ' db3' wavelet decomposition,
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本程序能实现基于小波模极大值算法去除高斯白噪声。效果显著-This procedure can achieve based on wavelet modulus maxima method to remove Gaussian white noise. Remarkably
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对一个二阶模型模型进行脉冲响应辨识，并且通过搭建simulink模型取得了两组输入-输出数据，一组是在有高斯噪声的干扰下获得u1-y3，另外一组是在没有高斯噪声的情况下获得的u1-y1，对这两组数据进行基于haar小波基的脉冲响应辨识，与实际模型的脉冲响应相比较（注：三个excel表必须放在matlab/work文件夹下才能运行）-Second-order model to a model of impulse response identification, and achieved thro
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本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解，-The Mr. Cheng Xu as a " Blocks" signal, and then add white Gaussian noise, and then ' db3' wavelet decomposed
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本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解，-The Mr. Cheng Xu as a " Blocks" signal, and then add white Gaussian noise, and then ' db3' wavelet decomposed
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对含噪声的图像进行识别和估计，通过小波分解，在频域中完成对图像的识别，判断是椒盐噪声还是高斯噪声，并对参数的值进行估计。-Identify and estimate noisy images, through the wavelet decomposition in the frequency domain to complete the image recognition to determine the salt and pepper noise or Gaussian noise, and
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红外小波高斯降噪方法的应用，主要参考了PS中的高斯模糊方法-Gaussian noise infrared application of the method of wavelet
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高斯噪声的小波变换仍然是高斯分布的，它均匀分布在频率尺度空间的各部分，而信号则由于其带限制性，它的小波变换系数仅仅集中在频率尺度空间上的有限部分。-Wavelet transform of the Gaussian noise is still Gaussian distribution, it is uniformly distributed in various parts of the frequency scale space signal because its a restricti
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压缩包展示了对含高斯噪声和椒盐噪声图片去噪处理的基本去噪演示，包括均值滤波、中值滤波、维纳滤波、小波滤波。希望可以对初学的朋友有所帮助。-Basic denoising with Gaussian noise and salt and pepper noise image denoising demo, including mean filter, median filtering, Wiener filtering, wavelet filter
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使用DCT和小波变换的数字音频水印生成/解码程序，可存活于方差0.05的高斯白噪声及不同程度的剪切。内含程序/测试文件介绍。-Digital wartermarking encoding/decoding program with DCT and wavelet transform.
nice robustness against Gaussian noise with variance less than 0.05 and any type of cropping attack.
fu
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Wavelet denoising
For using this code need to use signal toolbox and general toolbox in your matlab
In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size
512 by 512 and then generate noi
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this file denoise the pcg signal by wavelet and find the best wavelet who denoise the pcg signal
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产生正弦信号，加入高斯白噪声，并用小波方法去噪-Produce sine signals, add white gaussian noise, and wavelet denoising method
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本案例通过对图像加入高斯噪声，利用sym4小波函数对该图像和信号进行三级分解，用小波阀值去噪的方法对该图像进行去噪，并给出了仿真结果。-This case through join Gaussian noise image, use the sym4 wavelet decomposition of the image and signal, the wavelet threshold to filter method for the image denoising is presented,
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